There is an "interactive CD ROM" that lets you design your decks and porches and you can purchase them from DecksUSA, which is an online website. They ahve a phone number where you can call them and and ask questions about the CD and how you can design your own deck and porch.
You can browse pictures of decks at landscaping.com. Browse these deck pictures for design ideas. The deck pictures are supplemented with a link to information discussing their designs.
The best place to find designs for deck and porche plans would be from a local contrator that is qualified to work with wood, you could also ask your family and friends for ideas.
There are several websites that offer a variety of pictures of pool designs and decks. You can find pictures on websites like Instructables, and and Ehow.
You can outdoor deck designs at landscapingnetwork.com/decks/. They have very informative articles of deck designs. Learn all you need. There are many pictures.
You can find pictures of all kinds of decks on deckplans.com. There is a wide variety of decks and a whole bunch of different resources for building a deck.
While I am sure that these plans do exist in PDF format, I cannot find any online. I can find pictures of CAD files, and drawings of decks that you can have mailed to you, but I was not able to find any PDF plans for decks.
This website, http://www.diynetwork.com/topics/decks/index.html, has a lot of different ideas and pictures that could help you with designing your own deck. They also explain the different types of deck designs that they feature.
Some nice websites to look for decks designs are www.gardenstructure.com or www.hgtv/patio and decks.com. Both websites have pictures and instructions that will help you in your remodeling plans.
You can find house plans with decks on various platforms. Online websites specializing in home designs, such as Houzz, Architectural Digest, and Pinterest, offer a wide range of house plans featuring decks. Additionally, architectural magazines, local design firms, and real estate websites often showcase such plans. Customizable home design software also allows you to create personalized house plans with decks.
You can find plans and designs for decks with deck benches online. Http://www.gardenstructure.com/gallery/section/deck_designs is a good place to start.
You can find many pictures of decks and patios online by visiting manufacturing websites. There, you will be able to see dimensions and other important parts of building a patio.